1347432727 has 4 divisors (see below), whose sum is σ = 1372856040. Its totient is φ = 1322009416.

The previous prime is 1347432719. The next prime is 1347432731. The reversal of 1347432727 is 7272347431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7272347431 = 17 ⋅427785143.

It is a cyclic number.

It is not a de Polignac number, because 1347432727 - 2³ = 1347432719 is a prime.

It is a super-3 number, since 3×1347432727³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1347432727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347433727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12711577 + ... + 12711682.

It is an arithmetic number, because the mean of its divisors is an integer number (343214010).

Almost surely, 2^1347432727 is an apocalyptic number.

1347432727 is a deficient number, since it is larger than the sum of its proper divisors (25423313).

1347432727 is an equidigital number, since it uses as much as digits as its factorization.

1347432727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25423312.

The product of its digits is 197568, while the sum is 40.

The square root of 1347432727 is about 36707.3933561074. The cubic root of 1347432727 is about 1104.5084187580.

The spelling of 1347432727 in words is "one billion, three hundred forty-seven million, four hundred thirty-two thousand, seven hundred twenty-seven".